/* util.c -- readline utility functions */
-/* Copyright (C) 1987, 1989, 1992 Free Software Foundation, Inc.
+/* Copyright (C) 1987-2017 Free Software Foundation, Inc.
- This file is part of the GNU Readline Library, a library for
- reading lines of text with interactive input and history editing.
+ This file is part of the GNU Readline Library (Readline), a library
+ for reading lines of text with interactive input and history editing.
- The GNU Readline Library is free software; you can redistribute it
- and/or modify it under the terms of the GNU General Public License
- as published by the Free Software Foundation; either version 2, or
+ Readline is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
- The GNU Readline Library is distributed in the hope that it will be
- useful, but WITHOUT ANY WARRANTY; without even the implied warranty
- of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ Readline is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
- The GNU General Public License is often shipped with GNU software, and
- is generally kept in a file called COPYING or LICENSE. If you do not
- have a copy of the license, write to the Free Software Foundation,
- 59 Temple Place, Suite 330, Boston, MA 02111 USA. */
+ You should have received a copy of the GNU General Public License
+ along with Readline. If not, see <http://www.gnu.org/licenses/>.
+*/
+
#define READLINE_LIBRARY
#if defined (HAVE_CONFIG_H)
/* System-specific feature definitions and include files. */
#include "rldefs.h"
+#include "rlmbutil.h"
#if defined (TIOCSTAT_IN_SYS_IOCTL)
# include <sys/ioctl.h>
#include "rlprivate.h"
#include "xmalloc.h"
+#include "rlshell.h"
/* **************************************************************** */
/* */
in words, or 1 if it is. */
int _rl_allow_pathname_alphabetic_chars = 0;
-static const char *pathname_alphabetic_chars = "/-_=~.#$";
+static const char * const pathname_alphabetic_chars = "/-_=~.#$";
int
-rl_alphabetic (c)
- int c;
+rl_alphabetic (int c)
{
if (ALPHABETIC (c))
return (1);
strchr (pathname_alphabetic_chars, c) != NULL);
}
+#if defined (HANDLE_MULTIBYTE)
+int
+_rl_walphabetic (wchar_t wc)
+{
+ int c;
+
+ if (iswalnum (wc))
+ return (1);
+
+ c = wc & 0177;
+ return (_rl_allow_pathname_alphabetic_chars &&
+ strchr (pathname_alphabetic_chars, c) != NULL);
+}
+#endif
+
/* How to abort things. */
int
-_rl_abort_internal ()
+_rl_abort_internal (void)
{
rl_ding ();
rl_clear_message ();
- _rl_init_argument ();
+ _rl_reset_argument ();
rl_clear_pending_input ();
RL_UNSETSTATE (RL_STATE_MACRODEF);
while (rl_executing_macro)
_rl_pop_executing_macro ();
+ RL_UNSETSTATE (RL_STATE_MULTIKEY); /* XXX */
+
rl_last_func = (rl_command_func_t *)NULL;
- longjmp (readline_top_level, 1);
+
+ _rl_longjmp (_rl_top_level, 1);
return (0);
}
int
-rl_abort (count, key)
- int count, key;
+rl_abort (int count, int key)
{
return (_rl_abort_internal ());
}
int
-rl_tty_status (count, key)
- int count, key;
+_rl_null_function (int count, int key)
+{
+ return 0;
+}
+
+int
+rl_tty_status (int count, int key)
{
#if defined (TIOCSTAT)
ioctl (1, TIOCSTAT, (char *)0);
/* Return a copy of the string between FROM and TO.
FROM is inclusive, TO is not. */
char *
-rl_copy_text (from, to)
- int from, to;
+rl_copy_text (int from, int to)
{
register int length;
char *copy;
/* Increase the size of RL_LINE_BUFFER until it has enough space to hold
LEN characters. */
void
-rl_extend_line_buffer (len)
- int len;
+rl_extend_line_buffer (int len)
{
while (len >= rl_line_buffer_len)
{
/* A function for simple tilde expansion. */
int
-rl_tilde_expand (ignore, key)
- int ignore, key;
+rl_tilde_expand (int ignore, int key)
{
register int start, end;
char *homedir, *temp;
{
homedir = tilde_expand ("~");
_rl_replace_text (homedir, start, end);
+ xfree (homedir);
return (0);
}
- else if (rl_line_buffer[start] != '~')
+ else if (start >= 0 && rl_line_buffer[start] != '~')
{
- for (; !whitespace (rl_line_buffer[start]) && start >= 0; start--)
+ for (; start >= 0 && !whitespace (rl_line_buffer[start]); start--)
;
start++;
}
+ else if (start < 0)
+ start = 0;
end = start;
do
strncpy (temp, rl_line_buffer + start, len);
temp[len] = '\0';
homedir = tilde_expand (temp);
- free (temp);
+ xfree (temp);
_rl_replace_text (homedir, start, end);
+ xfree (homedir);
}
return (0);
}
+#if defined (USE_VARARGS)
+void
+#if defined (PREFER_STDARG)
+_rl_ttymsg (const char *format, ...)
+#else
+_rl_ttymsg (va_alist)
+ va_dcl
+#endif
+{
+ va_list args;
+#if defined (PREFER_VARARGS)
+ char *format;
+#endif
+
+#if defined (PREFER_STDARG)
+ va_start (args, format);
+#else
+ va_start (args);
+ format = va_arg (args, char *);
+#endif
+
+ fprintf (stderr, "readline: ");
+ vfprintf (stderr, format, args);
+ fprintf (stderr, "\n");
+ fflush (stderr);
+
+ va_end (args);
+
+ rl_forced_update_display ();
+}
+
+void
+#if defined (PREFER_STDARG)
+_rl_errmsg (const char *format, ...)
+#else
+_rl_errmsg (va_alist)
+ va_dcl
+#endif
+{
+ va_list args;
+#if defined (PREFER_VARARGS)
+ char *format;
+#endif
+
+#if defined (PREFER_STDARG)
+ va_start (args, format);
+#else
+ va_start (args);
+ format = va_arg (args, char *);
+#endif
+
+ fprintf (stderr, "readline: ");
+ vfprintf (stderr, format, args);
+ fprintf (stderr, "\n");
+ fflush (stderr);
+
+ va_end (args);
+}
+
+#else /* !USE_VARARGS */
+void
+_rl_ttymsg (format, arg1, arg2)
+ char *format;
+{
+ fprintf (stderr, "readline: ");
+ fprintf (stderr, format, arg1, arg2);
+ fprintf (stderr, "\n");
+
+ rl_forced_update_display ();
+}
+
+void
+_rl_errmsg (format, arg1, arg2)
+ char *format;
+{
+ fprintf (stderr, "readline: ");
+ fprintf (stderr, format, arg1, arg2);
+ fprintf (stderr, "\n");
+}
+#endif /* !USE_VARARGS */
+
/* **************************************************************** */
/* */
/* String Utility Functions */
/* Determine if s2 occurs in s1. If so, return a pointer to the
match in s1. The compare is case insensitive. */
char *
-_rl_strindex (s1, s2)
- register const char *s1, *s2;
+_rl_strindex (const char *s1, const char *s2)
{
register int i, l, len;
/* Find the first occurrence in STRING1 of any character from STRING2.
Return a pointer to the character in STRING1. */
char *
-_rl_strpbrk (string1, string2)
- const char *string1, *string2;
+_rl_strpbrk (const char *string1, const char *string2)
{
register const char *scan;
#if defined (HANDLE_MULTIBYTE)
{
v = _rl_get_char_len (string1, &ps);
if (v > 1)
- string += v - 1; /* -1 to account for auto-increment in loop */
+ string1 += v - 1; /* -1 to account for auto-increment in loop */
}
#endif
}
#if !defined (HAVE_STRCASECMP)
/* Compare at most COUNT characters from string1 to string2. Case
- doesn't matter. */
+ doesn't matter (strncasecmp). */
int
-_rl_strnicmp (string1, string2, count)
- char *string1, *string2;
- int count;
+_rl_strnicmp (const char *string1, const char *string2, int count)
{
- register char ch1, ch2;
+ register const char *s1;
+ register const char *s2;
+ register int d;
- while (count)
+ if (count <= 0 || (string1 == string2))
+ return 0;
+
+ s1 = string1;
+ s2 = string2;
+ do
{
- ch1 = *string1++;
- ch2 = *string2++;
- if (_rl_to_upper(ch1) == _rl_to_upper(ch2))
- count--;
- else
+ d = _rl_to_lower (*s1) - _rl_to_lower (*s2); /* XXX - cast to unsigned char? */
+ if (d != 0)
+ return d;
+ if (*s1++ == '\0')
break;
+ s2++;
}
- return (count);
+ while (--count != 0);
+
+ return (0);
}
-/* strcmp (), but caseless. */
+/* strcmp (), but caseless (strcasecmp). */
int
-_rl_stricmp (string1, string2)
- char *string1, *string2;
+_rl_stricmp (const char *string1, const char *string2)
{
- register char ch1, ch2;
+ register const char *s1;
+ register const char *s2;
+ register int d;
+
+ s1 = string1;
+ s2 = string2;
- while (*string1 && *string2)
+ if (s1 == s2)
+ return 0;
+
+ while ((d = _rl_to_lower (*s1) - _rl_to_lower (*s2)) == 0)
{
- ch1 = *string1++;
- ch2 = *string2++;
- if (_rl_to_upper(ch1) != _rl_to_upper(ch2))
- return (1);
+ if (*s1++ == '\0')
+ return 0;
+ s2++;
}
- return (*string1 - *string2);
+
+ return (d);
}
#endif /* !HAVE_STRCASECMP */
/* Stupid comparison routine for qsort () ing strings. */
int
-_rl_qsort_string_compare (s1, s2)
- char **s1, **s2;
+_rl_qsort_string_compare (char **s1, char **s2)
{
#if defined (HAVE_STRCOLL)
return (strcoll (*s1, *s2));
}
/* Function equivalents for the macros defined in chardefs.h. */
-#define FUNCTION_FOR_MACRO(f) int (f) (c) int c; { return f (c); }
+#define FUNCTION_FOR_MACRO(f) int (f) (int c) { return f (c); }
FUNCTION_FOR_MACRO (_rl_digit_p)
FUNCTION_FOR_MACRO (_rl_digit_value)
FUNCTION_FOR_MACRO (_rl_to_upper)
FUNCTION_FOR_MACRO (_rl_uppercase_p)
+/* A convenience function, to force memory deallocation to be performed
+ by readline. DLLs on Windows apparently require this. */
+void
+rl_free (void *mem)
+{
+ if (mem)
+ free (mem);
+}
+
/* Backwards compatibility, now that savestring has been removed from
all `public' readline header files. */
#undef _rl_savestring
char *
-_rl_savestring (s)
- const char *s;
+_rl_savestring (const char *s)
{
return (strcpy ((char *)xmalloc (1 + (int)strlen (s)), (s)));
}
+
+#if defined (DEBUG)
+#if defined (USE_VARARGS)
+static FILE *_rl_tracefp;
+
+void
+#if defined (PREFER_STDARG)
+_rl_trace (const char *format, ...)
+#else
+_rl_trace (va_alist)
+ va_dcl
+#endif
+{
+ va_list args;
+#if defined (PREFER_VARARGS)
+ char *format;
+#endif
+
+#if defined (PREFER_STDARG)
+ va_start (args, format);
+#else
+ va_start (args);
+ format = va_arg (args, char *);
+#endif
+
+ if (_rl_tracefp == 0)
+ _rl_tropen ();
+ vfprintf (_rl_tracefp, format, args);
+ fprintf (_rl_tracefp, "\n");
+ fflush (_rl_tracefp);
+
+ va_end (args);
+}
+
+int
+_rl_tropen (void)
+{
+ char fnbuf[128], *x;
+
+ if (_rl_tracefp)
+ fclose (_rl_tracefp);
+#if defined (_WIN32) && !defined (__CYGWIN__)
+ /* Windows doesn't have /var/tmp, so open the trace file in the
+ user's temporary directory instead. */
+ snprintf (fnbuf, sizeof (fnbuf), "%s/rltrace.%ld",
+ (sh_get_env_value ("TEMP")
+ ? sh_get_env_value ("TEMP")
+ : "."),
+ getpid ());
+#else
+ sprintf (fnbuf, "/var/tmp/rltrace.%ld", (long) getpid ());
+#endif
+ unlink (fnbuf);
+ _rl_tracefp = fopen (fnbuf, "w+");
+ return _rl_tracefp != 0;
+}
+
+int
+_rl_trclose (void)
+{
+ int r;
+
+ r = fclose (_rl_tracefp);
+ _rl_tracefp = 0;
+ return r;
+}
+
+void
+_rl_settracefp (FILE *fp)
+{
+ _rl_tracefp = fp;
+}
+#endif
+#endif /* DEBUG */
+
+
+#if HAVE_DECL_AUDIT_USER_TTY && defined (HAVE_LIBAUDIT_H) && defined (ENABLE_TTY_AUDIT_SUPPORT)
+#include <sys/socket.h>
+#include <libaudit.h>
+#include <linux/audit.h>
+#include <linux/netlink.h>
+
+/* Report STRING to the audit system. */
+void
+_rl_audit_tty (char *string)
+{
+ struct audit_message req;
+ struct sockaddr_nl addr;
+ size_t size;
+ int fd;
+
+ fd = socket (PF_NETLINK, SOCK_RAW, NETLINK_AUDIT);
+ if (fd < 0)
+ return;
+ size = strlen (string) + 1;
+
+ if (NLMSG_SPACE (size) > MAX_AUDIT_MESSAGE_LENGTH)
+ return;
+
+ memset (&req, 0, sizeof(req));
+ req.nlh.nlmsg_len = NLMSG_SPACE (size);
+ req.nlh.nlmsg_type = AUDIT_USER_TTY;
+ req.nlh.nlmsg_flags = NLM_F_REQUEST;
+ req.nlh.nlmsg_seq = 0;
+ if (size && string)
+ memcpy (NLMSG_DATA(&req.nlh), string, size);
+ memset (&addr, 0, sizeof(addr));
+
+ addr.nl_family = AF_NETLINK;
+ addr.nl_pid = 0;
+ addr.nl_groups = 0;
+
+ sendto (fd, &req, req.nlh.nlmsg_len, 0, (struct sockaddr*)&addr, sizeof(addr));
+ close (fd);
+}
+#endif
projects / binutils-gdb.git / blobdiff